#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int hight = 0, weight = 0;
	double BMI = 0;
	scanf("%d %d", &weight, &hight);
	BMI = weight / ((hight / 100.0) * (hight / 100.0));
	printf("%.2lf\n", BMI);
	return 0;
}